7results about How to "Effective stimulation" patented technology

The present application relates to a kind of electromagnetic ultrasonic-based underwater steel structure damage detection and distinguishing method, using electromagnetic ultrasonic detection equipment to detect underwater steel structure with non-conductive covering layer on surface.The method comprises: electromagnetic acoustic transducer (EMAT) probe is arranged above the surface of underwater steel structure;According to lift-off distance, configure excitation parameter;Apply excitation pulse to emit ultrasonic wave;Receive echo signal and extract transit time feature, echo amplitude feature and initial wave amplitude feature;At least one change based on the above features distinguishes abnormal type, the abnormal type includes at least one of corrosion thinning, surface opening crack and simple lift-off increase.By the above design, the present application realizes the accurate detection and reliable distinction of underwater steel structure damage state under the condition of non-conductive covering layer.

This disclosure relates to a blood collection needle, comprising: an outer sheath; at least two spring arms disposed at a first end of the outer sheath; a blood collection needle, wherein the outer wall of the needle core of the blood collection needle is provided with at least two stop protrusions, the at least two stop protrusions being adapted to abut against the ends of the at least two spring arms respectively in the axial direction; a pressing member, adapted to be pressedly assembled to the first end in the direction of the needle outlet, including a pressing cap and at least two extensions; a drive spring, one end abutting against the pressing member and the other end abutting against the stop protrusions of the blood collection needle, wherein: the extensions are adapted to abut against the corresponding ends of the at least two spring arms when the pressing member moves in the direction of the needle outlet, thereby driving the ends of the at least two spring arms to deform or move laterally outward, so that the stop protrusions simultaneously disengage from abutting against the ends of the at least two spring arms and allow the needle core to move in the direction of needle outlet.

The utility model relates to a kind of treatment auxiliary devices, especially a kind of cardiology treatment auxiliary device, including support frame, control module, connecting line, air cylinder, extrusion block, conducting plate and connecting assembly etc.;Control module is installed on the top of support frame, air cylinder is installed on support frame, control module is electrically connected with air cylinder, connecting assembly is set on the piston rod of air cylinder, air cylinder is connected with extrusion block by connecting assembly, extrusion block bottom is fixedly connected with conducting plate, control module is electrically connected with conducting plate by connecting line. The utility model accurately controls the delivery of current and the telescopic movement of air cylinder by control module, realizes the effective stimulation and intermittent compression to patient's heart, ensures the accuracy and effectiveness of treatment process.

The application discloses a recombinant carrier for preparing HLA / beta 2M complex and a preparation method and application thereof, relates to the technical field of antibody preparation of MHC-polypeptide complex, and provides a recombinant carrier for preparing HLA / beta 2M complex, wherein FOS leucine zipper bZIP motif is inserted between NheI / AvrII enzyme cutting sites of an original carrier, JUN leucine zipper bZIP motif is inserted between BsiWI / BlpI enzyme cutting sites, beta 2M gene sequence is inserted between AgeI / NheI enzyme cutting sites, and HLA sequence is inserted between specific enzyme cutting sites, so that the prepared HLA / beta 2M complex has high expression, and the highest expression reaches 92.45 mg / L.

The application discloses europium-doped apatite-based red fluorescent powder and a preparation method thereof, and relates to the technical field of luminescent materials. 10‑x (PO4)6F2:xEu 3+ ; wherein x is Eu 3+ doping substitution Ca 2+ , and the molar ratio of Eu 3+ is 0.02<=x<=0.2. The preparation method mainly uses a calcium source, a fluorine source, a phosphate, and an Eu 3+ containing compound as raw materials, and the fluorescent powder can be obtained through hydrothermal heating at a temperature of 150-250 DEG C, cleaning and drying. The prepared fluorescent powder shows strong narrow-band red emission under excitation of ultraviolet light of 390 nm, the emission wavelength ranges from 579 nm to 696 nm, and the main peak is at 618 nm; the color temperature is 2138.74 K, and the color coordinates are about (0.5896, 0.3385), so the prepared fluorescent powder can be used as a red fluorescent powder with relatively good thermal stability. The preparation process is simple, green and environmentally friendly, and is convenient for large-scale production.

The application provides a full-spectrum complex-phase fluorescent ceramic and a preparation method and application thereof. 1‑x‑y Sr y AlSiN3:xEu (0 1‑x‑a‑b Y a Gd b )3(Al 1‑c Ga c )5O 12 :xCe (0 12 The short-time ceramic sintering and the faster temperature rising and falling rate in the application effectively slow down the grain growth in the ceramic sintering process, and in the short-time sintering process, the nitride powder forms the oxide phase in situ without causing large decomposition or sintering so as to make it invalid. In short, through the short-time high-temperature pulse sintering, the sintering densification of the complex-phase ceramic is promoted, and the nitride phase is avoided from being oxidized in the long-time high-temperature process to cause the sharp drop of the luminous efficiency.

The utility model relates to PC muscle training technical field especially relates to a PC muscle training device. The PC muscle training device includes: accommodating plate, connecting plate, spring, drive assembly, the top fixedly connected with the spheroid of accommodating plate, the spheroid is hollow, the inner wall symmetrical fixedly connected with the resistance block of spheroid, the similar side of two resistance blocks all is fixedly connected with two link blocks, the similar side inside of every two link blocks all is rotatably connected with link rod, the similar side outside rotatably connected with stress plate of every two link rods, the similar side fixedly connected with connecting plate of two stress plates, the bottom fixedly connected with sliding rod of connecting plate, the bottom fixedly connected with sliding plate of sliding rod. The utility model can easily make the adjusting plate move up and down, change spring compression degree, and then flexibly adjust the elasticity size, namely training resistance. Without disassembling and replacing parts, simple and efficient operation, and increase the flexibility of training device.